WO1999041325A1 - Refrigerant composition - Google Patents
Refrigerant composition Download PDFInfo
- Publication number
- WO1999041325A1 WO1999041325A1 PCT/KR1998/000167 KR9800167W WO9941325A1 WO 1999041325 A1 WO1999041325 A1 WO 1999041325A1 KR 9800167 W KR9800167 W KR 9800167W WO 9941325 A1 WO9941325 A1 WO 9941325A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- weight
- refrigerant
- refrigerant composition
- cyclo
- profane
- Prior art date
Links
- 239000003507 refrigerant Substances 0.000 title claims abstract description 51
- 239000000203 mixture Substances 0.000 title claims abstract description 35
- RGSFGYAAUTVSQA-UHFFFAOYSA-N Cyclopentane Chemical compound C1CCCC1 RGSFGYAAUTVSQA-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229920002545 silicone oil Polymers 0.000 claims abstract description 13
- DMEGYFMYUHOHGS-UHFFFAOYSA-N heptamethylene Natural products C1CCCCCC1 DMEGYFMYUHOHGS-UHFFFAOYSA-N 0.000 claims abstract description 12
- VPAYJEUHKVESSD-UHFFFAOYSA-N trifluoroiodomethane Chemical compound FC(F)(F)I VPAYJEUHKVESSD-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims description 5
- 229930195733 hydrocarbon Natural products 0.000 claims description 4
- 150000002430 hydrocarbons Chemical class 0.000 claims description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 2
- 239000007789 gas Substances 0.000 abstract description 17
- 230000036541 health Effects 0.000 abstract description 4
- 239000002184 metal Substances 0.000 abstract description 4
- 229910052751 metal Inorganic materials 0.000 abstract description 4
- 150000002739 metals Chemical class 0.000 abstract description 2
- 229920001296 polysiloxane Polymers 0.000 abstract description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 abstract 2
- 239000001294 propane Substances 0.000 abstract 1
- 239000004615 ingredient Substances 0.000 description 8
- 239000000314 lubricant Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- 230000008014 freezing Effects 0.000 description 4
- 238000007710 freezing Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000001050 lubricating effect Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 239000001273 butane Substances 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 229940035423 ethyl ether Drugs 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- INQOMBQAUSQDDS-UHFFFAOYSA-N iodomethane Chemical compound IC INQOMBQAUSQDDS-UHFFFAOYSA-N 0.000 description 2
- NNPPMTNAJDCUHE-UHFFFAOYSA-N isobutane Chemical compound CC(C)C NNPPMTNAJDCUHE-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 2
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 2
- 231100000956 nontoxicity Toxicity 0.000 description 2
- 150000005846 sugar alcohols Polymers 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 229910007161 Si(CH3)3 Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- KYKAJFCTULSVSH-UHFFFAOYSA-N chloro(fluoro)methane Chemical compound F[C]Cl KYKAJFCTULSVSH-UHFFFAOYSA-N 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- 235000010855 food raising agent Nutrition 0.000 description 1
- 229960002050 hydrofluoric acid Drugs 0.000 description 1
- 239000001282 iso-butane Substances 0.000 description 1
- 235000013847 iso-butane Nutrition 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- -1 polysiloxane Polymers 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/02—Materials undergoing a change of physical state when used
- C09K5/04—Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice versa
- C09K5/041—Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice versa for compression-type refrigeration systems
- C09K5/044—Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice versa for compression-type refrigeration systems comprising halogenated compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2205/00—Aspects relating to compounds used in compression type refrigeration systems
- C09K2205/10—Components
- C09K2205/11—Ethers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2205/00—Aspects relating to compounds used in compression type refrigeration systems
- C09K2205/10—Components
- C09K2205/12—Hydrocarbons
Definitions
- the present invention relates to a refrigerant composition which can be used in automobile air conditioners, refrigerators, freezers and the like. More specifically, the present invention relates to an incombustible non-explosive safe refrigerant composition which includes tri-fluoro-methyl iodide, profane and cyclo-pentane .
- a freezer includes a compressor, a condenser, a liguid receiver, an expansion valve, an evaporator and an oil-water separator.
- the refrigerating cycle is carried out. That is, the refrigerant is spouted through the expansion valve into the evaporator to be evaporated so as to absorb the heat from the surrounding regions (heat absorbing reaction) .
- the evaporated refrigerant is compressed by the compressor, and is sent through the oil-water separator into the condenser to be condensed into a liquid (heat releasing reaction) .
- the refrigerant used has to be well-condensed and well-evaporated under a small pressure and a small temperature difference.
- the typical ones are ammonia, carbon dioxide, and chloro-fluoro-carbon (to be called "CFC" below) .
- the CFC gas is the freon gas which includes R-ll, R-12, R-13, R-22, R-113, R-114, R-500 and R-502.
- the freon gas has solved the problems of the ammonia gas such as the toxicity, metal corrosion, deliquescence, and harm to the human health. Further, the freon gas has a high refrigerating capability, and has other advantages such as non-toxicity, non-explosiveness, non-corrosion, and non-harmfulness to the human health. However, recently it has been recognized that the CFC refrigerants destroy the ozone layer, and particularly the freon gases including R-ll, R-12, R-113, R-114 and R-115 have been subjected to regulations.
- the freon gas R-12 is mostly used in small freezers such as automobile air conditioners and home refrigerators and the like.
- the freon gas R-22 (HCFC) has a large freezing capability compared with the R-12, and therefore, it is used in intermediate and large freezers.
- the HCFC freon gases such as R-113 and R-114 are used in turbo freezers, while R-115 and R-22 are mixed to form an azeotropic mixed refrigerant R-502 so as to be used as a low temperature refrigerant.
- R-22 together with the above freon gases is proposed to be regulated by the European countries and the Green Peace Conference. Therefore, the use of all the freon gases and the azeotropic mixed refrigerants will be prohibited.
- freon refrigerant is mixed with water, then only a small part of the water is dissolved in the freon refrigerant. Therefore, the water is formed into water drops so as to be freezed into ice pieces. The expansion valve is clogged by the ice pieces to obstruct the flow of the refrigerant, with the result that the performance of the freezer is lowered, or that disorders may occur. Therefore water is prohibited in a freezer, and the refrigerating paths have to be completely dried before filling the freon gas. If moisture and air are mixed into the freon gas, then fluoric acid is formed, and thus the compressor and pipes are corroded. Therefore, a drying agent such as silica gel is used, and thus, the moisture has to be avoided by any means in the conventional freezers.
- a drying agent such as silica gel is used, and thus, the moisture has to be avoided by any means in the conventional freezers.
- a low temperature lubricant is used to prevent the wearing of the compressor and the like. This lubricant has to keep the lubricating capability even at a low temperature, and has to be compatible with the refrigerant.
- the low temperature lubricant In the case of the freon refrigerants, the low temperature lubricant is dissolved into the refrigerant down to a certain temperature level. In the freon gas- using freezers, the low temperature lubricant departs from the compressor to circulate through the freezing path so as to return into the compressor.
- the present invention is intended to overcome the above described disadvantages of the conventional techniques.
- silicone oil is added. Silicone oil has the functions of making the composition incombustible, lubricating the compressor, and serving as a catalyst.
- the refrigerant composition according to the present invention is applicable to a freezer including a compressor, a condenser, a liquid receiver, an expansion valve and an evaporator.
- the refrigerant composition according to the present invention includes: tri-fluoro-methyl iodide (CF 3 I) ; one or more paraffinic hydrocarbons selected from a group consisting of profane, cyclo-profane, cyclo-pentane and DME; and silicone oil for making the composition flow smooth.
- CF 3 I tri-fluoro-methyl iodide
- paraffinic hydrocarbons selected from a group consisting of profane, cyclo-profane, cyclo-pentane and DME
- silicone oil for making the composition flow smooth.
- the silicone oil has the functions of making the composition incombustible, lubricating the compressor, and serving as a catalyst.
- the catalytic property is such that it helps the ingredients to form a colloid.
- the refrigerant composition according to the present invention can be used to any freezer which uses the freon gas, and can be used to any existing type of freezers such as the volume compressing type, the reciprocating type, the rotary type, the screw type, the rotary-compressing type, the screw-compressing type and the like.
- the refrigerant composition of the present invention can be used in the existing freezers without modifying their structures.
- the freezer is equipped with an oil separator and a liquid separator.
- standard products ISOVG 10-100 or the like approved by the International Standard Organization
- (ISO) may be used singly or mixed.
- the above refrigerant compositions may be used singly or mixed. Particularly a non-reactive one may be preferable, and it should be easily obtained from the manufacturing process, and should be cheap. In this respect, the paraffinic hydrocarbons should be preferable.
- the igniting point raising agent tri-fluoro- methyl iodide (CF 3 I) should be preferable.
- silicone oil (CH 3 ) 3 Si-0-Si(CH 3 ) 3 ) should be added.
- Example 1 Example 2
- the ingredients were injected through a pipe into a sealed mixing vessel in which air and moisture are deaerated, by using a pressure gauge in the usual way. Then the mixing vessel was rotated to uniformly mix the ingredients, and then the refrigerant composition thus formed was discharged into a gas bomb having a separate valve.
- the refrigerant composition includes tri-fluoro-methyl iodide (existing as gas at the normal temperature) , one or more of paraffinic hydrocarbons such as profane and cyclo- profane. Therefore, the refrigerant composition can be used in automobile air conditioners, home refrigerators and other freezers without modifying the existing structures of the apparatuses. Further, the safety such as non- combustibleness and non-explosiveness is ensured, and the involved metals are not corroded, while there is no harm to the human health. Therefore, the refrigerant composition of the present invention is a new useful refrigerant.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Thermal Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Abstract
A refrigerant composition which can be used in automobile air conditioners, refrigerators, freezers and the like is disclosed. The composition includes 30-45 weight % of tri-fluoro-methyl iodide; 42-50 weight % of propane; 1-10 weight % of cyclo-pentane; and 0.5-1 weight % of silicone oil (di-methyl-polysiloxane). The refrigerant composition can be used in automobile air conditioners, home refrigerators and other freezers without modifying the existing structures of the apparatuses. Further, the safety such as non-combustibleness and non-explosiveness is ensured, and the involved metals are not corroded, while there is no harm to the human health. Therefore, the refrigerant composition of the present invention can replace the freon gases which are harmful to the environment.
Description
REFRIGERANT COMPOSITION
BACKGROUND OF THE INVENTION
1. Field of the invention The present invention relates to a refrigerant composition which can be used in automobile air conditioners, refrigerators, freezers and the like. More specifically, the present invention relates to an incombustible non-explosive safe refrigerant composition which includes tri-fluoro-methyl iodide, profane and cyclo-pentane .
2. Description of the prior art
Among the refrigerants for use in the refrigerating cycle, there is U.S Patent 5,422,025 (dated June 6, 1995) which was awarded to the present applicant and discloses a refrigerant for replacing the freon gas refrigerants. This invention is related to the present invention, and includes nitrogen and a polyhydric alcohol. This refrigerant composition is very cheap, but it is combustible because the polyhydric alcohol has a low igniting point. There is also U.S. Patent 5,624,459 (dated April 29, 1997) of the present applicant. In this refrigerant composition, there are added butane and ethylether, and further added a silicone oil (di-methyl polysiloxane) for making the composition incombustible. This refrigerant composition is also cheap, but it is still combustible due to the contents of butane and ethylether. As is generally known, a freezer includes a compressor, a condenser, a liguid receiver, an expansion valve, an evaporator and an oil-water separator. Thus the refrigerating cycle is carried out. That is, the refrigerant is spouted through the expansion valve into the evaporator to be evaporated so as to absorb the heat from the surrounding regions (heat absorbing reaction) . The evaporated refrigerant is compressed by the compressor,
and is sent through the oil-water separator into the condenser to be condensed into a liquid (heat releasing reaction) . Then the refrigerant is received into the liquid receiver, and this refrigerating cycle is repeated. The refrigerant used has to be well-condensed and well-evaporated under a small pressure and a small temperature difference. The typical ones are ammonia, carbon dioxide, and chloro-fluoro-carbon (to be called "CFC" below) . The CFC gas is the freon gas which includes R-ll, R-12, R-13, R-22, R-113, R-114, R-500 and R-502.
The freon gas has solved the problems of the ammonia gas such as the toxicity, metal corrosion, deliquescence, and harm to the human health. Further, the freon gas has a high refrigerating capability, and has other advantages such as non-toxicity, non-explosiveness, non-corrosion, and non-harmfulness to the human health. However, recently it has been recognized that the CFC refrigerants destroy the ozone layer, and particularly the freon gases including R-ll, R-12, R-113, R-114 and R-115 have been subjected to regulations.
The freon gas R-12 is mostly used in small freezers such as automobile air conditioners and home refrigerators and the like. The freon gas R-22 (HCFC) has a large freezing capability compared with the R-12, and therefore, it is used in intermediate and large freezers.
The HCFC freon gases such as R-113 and R-114 are used in turbo freezers, while R-115 and R-22 are mixed to form an azeotropic mixed refrigerant R-502 so as to be used as a low temperature refrigerant. However, R-22 together with the above freon gases is proposed to be regulated by the European countries and the Green Peace Conference. Therefore, the use of all the freon gases and the azeotropic mixed refrigerants will be prohibited.
If the freon refrigerant is mixed with water, then only a small part of the water is dissolved in the freon refrigerant. Therefore, the water is formed into water drops so as to be freezed into ice pieces. The expansion
valve is clogged by the ice pieces to obstruct the flow of the refrigerant, with the result that the performance of the freezer is lowered, or that disorders may occur. Therefore water is prohibited in a freezer, and the refrigerating paths have to be completely dried before filling the freon gas. If moisture and air are mixed into the freon gas, then fluoric acid is formed, and thus the compressor and pipes are corroded. Therefore, a drying agent such as silica gel is used, and thus, the moisture has to be avoided by any means in the conventional freezers.
Further, in the conventional freezers, a low temperature lubricant is used to prevent the wearing of the compressor and the like. This lubricant has to keep the lubricating capability even at a low temperature, and has to be compatible with the refrigerant.
In the case of the freon refrigerants, the low temperature lubricant is dissolved into the refrigerant down to a certain temperature level. In the freon gas- using freezers, the low temperature lubricant departs from the compressor to circulate through the freezing path so as to return into the compressor.
In the case of a freezer using a large amount of the low temperature lubricant, or in the case of a freezer having a long freezing path, there is used an oil separator. In the case of the freezer using the ammonia refrigerant, the low temperature lubricant is dissolved into the refrigerant, and therefore, there is installed an oil separator. Besides the freon refrigerants, there are proposed iso-butane and profane as refrigerants. However, they are combustible and explosive, and therefore, a safety device has to be installed. Further, if they are to be used in automobile air conditioners and home refrigerators, a special design has to be carried out. That is, the basic design has to be modified by taking into account the freezing capability, and therefore, not only a design
change and an addition of new manufacturing facilities are required, thereby incurring new costs.
Further, the existing automobile air conditioners and home refrigerators have to be discarded, and therefore, the economy is further aggravated.
SUMMARY OF THE INVENTION
The present invention is intended to overcome the above described disadvantages of the conventional techniques.
Therefore it is an object of the present invention to provide a non-azeotropic mixed refrigerant which is capable of replacing the freon refrigerants.
It is another object of the present invention to provide a refrigerant which can be used in a drop-in manner without modifying the design and structure of the existing freezers.
It is still another object of the present invention to provide a refrigerant which is not harmful to the human body and the environment.
As one of the ingredients, silicone oil is added. Silicone oil has the functions of making the composition incombustible, lubricating the compressor, and serving as a catalyst. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
The refrigerant composition according to the present invention is applicable to a freezer including a compressor, a condenser, a liquid receiver, an expansion valve and an evaporator. The refrigerant composition according to the present invention includes: tri-fluoro-methyl iodide (CF3I) ; one or more paraffinic hydrocarbons selected from a group consisting of profane, cyclo-profane, cyclo-pentane and DME; and silicone oil for making the composition flow smooth.
The silicone oil has the functions of making the composition incombustible, lubricating the compressor,
and serving as a catalyst. The catalytic property is such that it helps the ingredients to form a colloid.
The refrigerant composition according to the present invention can be used to any freezer which uses the freon gas, and can be used to any existing type of freezers such as the volume compressing type, the reciprocating type, the rotary type, the screw type, the rotary-compressing type, the screw-compressing type and the like.
Particularly, the refrigerant composition of the present invention can be used in the existing freezers without modifying their structures.
Further, it will be more desirable if the freezer is equipped with an oil separator and a liquid separator. As to the lubricant, standard products (ISOVG 10-100 or the like) approved by the International Standard Organization
(ISO) may be used singly or mixed.
Further, the above refrigerant compositions may be used singly or mixed. Particularly a non-reactive one may be preferable, and it should be easily obtained from the manufacturing process, and should be cheap. In this respect, the paraffinic hydrocarbons should be preferable. As the igniting point raising agent, tri-fluoro- methyl iodide (CF3I) should be preferable. Particularly, in order to ensure a non-toxicity and to prevent metal corrosions, silicone oil ( (CH3)3Si-0-Si(CH3)3) should be added.
The examples are as follows.
Example 1 Example 2
Ingredient Weight % Ingredient Weight %
Tri-fluoro- Tri-fluoro- methyl iodide 42 methyl iodide 44
Profane 42 Profane 44
Cyclo-pentane 10 Cyclo-pentane 1.5
Silicone oil 0.5
Example 3 Example 4
Ingredient Weight % Ingredient Weight %
Tri-fluoro- Tri-fluoro- methyl iodide 45 methyl iodide 30
Profane 50 Profane 48
Cyclo-pentane 4 Alcohol 10
Silicone oil 1 Cyclo-pentane 1.5 Silicone oil 0.5
In carrying out the above mixing, the ingredients were injected through a pipe into a sealed mixing vessel in which air and moisture are deaerated, by using a pressure gauge in the usual way. Then the mixing vessel was rotated to uniformly mix the ingredients, and then the refrigerant composition thus formed was discharged into a gas bomb having a separate valve.
According to the present invention as described above, the refrigerant composition includes tri-fluoro-methyl iodide (existing as gas at the normal temperature) , one or more of paraffinic hydrocarbons such as profane and cyclo- profane. Therefore, the refrigerant composition can be used in automobile air conditioners, home refrigerators and other freezers without modifying the existing structures of
the apparatuses. Further, the safety such as non- combustibleness and non-explosiveness is ensured, and the involved metals are not corroded, while there is no harm to the human health. Therefore, the refrigerant composition of the present invention is a new useful refrigerant.
Claims
1. A refrigerant composition to be used in a freezer including a compressor, a condenser, a liquid receiver, an expansion valve and an evaporator, the refrigerant composition comprising: tri-fluoro- methyl iodide existing as a gas at normal temperature; and one or more of paraffinic hydrocarbons selected from a group consisting of profane, cyclo-profane, cyclo- pentane, and DME.
2. The refrigerant composition as claimed in claim 1, wherein the composition comprises: 42 weight % of tri- fluoro-methyl iodide; 42 weight % of profane; and 10 weight % of cyclo-pentane.
3. The refrigerant composition as claimed in claim 1, wherein the composition comprises: 44 weight % of tri- fluoro-methyl iodide; 44 weight % of profane; 1.5 weight % of cyclo-pentane; and 0.5 weight % of silicone oil.
4. The refrigerant composition as claimed in claim 1, wherein the composition comprises: 45 weight % of tri- fluoro-methyl iodide; 50 weight % of profane; 4 weight % of cyclo-pentane; and 1 weight % of silicone oil.
5. The refrigerant composition as claimed in claim 1, wherein the composition comprises: 30 weight % of tri- fluoro-methyl iodide; 48 weight % of profane; 10 weight % of an alcohol; 1.5 weight % of cyclo-pentane; and 0.5 weight % of silicone oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU79393/98A AU7939398A (en) | 1998-02-13 | 1998-06-17 | Refrigerant composition |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019980004403A KR100255477B1 (en) | 1998-02-13 | 1998-02-13 | Refrigerant |
| KR1998/4403 | 1998-02-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1999041325A1 true WO1999041325A1 (en) | 1999-08-19 |
Family
ID=19533030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR1998/000167 WO1999041325A1 (en) | 1998-02-13 | 1998-06-17 | Refrigerant composition |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR100255477B1 (en) |
| AU (1) | AU7939398A (en) |
| WO (1) | WO1999041325A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0997519A1 (en) * | 1998-09-29 | 2000-05-03 | Nippon Mitsubishi Oil Corporation | Refrigerating machine oil |
| WO2020116189A1 (en) * | 2018-12-05 | 2020-06-11 | ダイキン工業株式会社 | Heat transfer composition |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100492174B1 (en) * | 2004-08-25 | 2005-06-02 | 함윤식 | R12 or r22 substitute mixed refrigerant and refrigeration system using thereof |
| KR100976449B1 (en) * | 2009-07-13 | 2010-08-17 | 주식회사 와이엠환경연구소 | Near azeotropic refrigerant mixtures |
| KR100957043B1 (en) * | 2009-07-13 | 2010-05-13 | 주식회사 와이엠환경연구소 | Near azeotropic refrigerant mixtures |
| KR100969258B1 (en) * | 2009-09-25 | 2010-07-09 | 주식회사 와이엠환경연구소 | Near azeotropic refrigerant mixtures |
| KR100969257B1 (en) * | 2009-09-25 | 2010-07-09 | 주식회사 와이엠환경연구소 | Near azeotropic refrigerant mixtures |
| KR100969256B1 (en) * | 2009-09-25 | 2010-07-09 | 주식회사 와이엠환경연구소 | Near azeotropic refrigerant mixtures |
| KR102254272B1 (en) * | 2018-11-07 | 2021-05-20 | 이선 | Environment-friendly, non-flammable refrigerant mixture |
| KR102181412B1 (en) * | 2018-12-03 | 2020-11-23 | 주식회사 레미 | Environment-friendly, non-flammable refrigerant mixture |
| KR102186985B1 (en) * | 2018-12-03 | 2020-12-04 | 주식회사 레미 | Environment-friendly, lower-flammability refrigerant mixture |
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|---|---|---|---|---|
| WO1992001762A1 (en) * | 1990-07-26 | 1992-02-06 | E.I. Du Pont De Nemours And Company | Near-azeotropic blends for use as refrigerants |
| WO1993001152A2 (en) * | 1991-07-03 | 1993-01-21 | E.I. Du Pont De Nemours And Company | Azeotropic or azeotrope-like compositions of pentafluoroethane and propane or isobutane |
| WO1994000529A1 (en) * | 1992-06-25 | 1994-01-06 | Great Lakes Chemical Corporation | Refrigerant blends containing 1,1,1,2,3,3,3-heptafluoropropane |
| WO1994002564A1 (en) * | 1992-07-28 | 1994-02-03 | E.I. Du Pont De Nemours And Company | Refrigerant compositions including pentafluorodimethyl ether |
| EP0724003A2 (en) * | 1995-01-25 | 1996-07-31 | Oho, Suk Jae | Refrigerant composition |
| US5611210A (en) * | 1993-03-05 | 1997-03-18 | Ikon Corporation | Fluoroiodocarbon blends as CFC and halon replacements |
| JPH09111230A (en) * | 1995-10-13 | 1997-04-28 | Matsushita Electric Ind Co Ltd | Mixed working fluid containing trifluoroiodomethane and refrigeration cycle apparatus using the fluid |
| JPH09111231A (en) * | 1995-10-13 | 1997-04-28 | Matsushita Electric Ind Co Ltd | Mixed working fluid containing trifluoroiodomethane and refrigeration cycle apparatus using the fluid |
| WO1997015637A1 (en) * | 1995-10-20 | 1997-05-01 | Tsinghua University | Refrigerant |
-
1998
- 1998-02-13 KR KR1019980004403A patent/KR100255477B1/en not_active Expired - Fee Related
- 1998-06-17 AU AU79393/98A patent/AU7939398A/en not_active Abandoned
- 1998-06-17 WO PCT/KR1998/000167 patent/WO1999041325A1/en active Application Filing
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|---|---|---|---|---|
| WO1992001762A1 (en) * | 1990-07-26 | 1992-02-06 | E.I. Du Pont De Nemours And Company | Near-azeotropic blends for use as refrigerants |
| WO1993001152A2 (en) * | 1991-07-03 | 1993-01-21 | E.I. Du Pont De Nemours And Company | Azeotropic or azeotrope-like compositions of pentafluoroethane and propane or isobutane |
| WO1994000529A1 (en) * | 1992-06-25 | 1994-01-06 | Great Lakes Chemical Corporation | Refrigerant blends containing 1,1,1,2,3,3,3-heptafluoropropane |
| WO1994002564A1 (en) * | 1992-07-28 | 1994-02-03 | E.I. Du Pont De Nemours And Company | Refrigerant compositions including pentafluorodimethyl ether |
| US5611210A (en) * | 1993-03-05 | 1997-03-18 | Ikon Corporation | Fluoroiodocarbon blends as CFC and halon replacements |
| EP0724003A2 (en) * | 1995-01-25 | 1996-07-31 | Oho, Suk Jae | Refrigerant composition |
| JPH09111230A (en) * | 1995-10-13 | 1997-04-28 | Matsushita Electric Ind Co Ltd | Mixed working fluid containing trifluoroiodomethane and refrigeration cycle apparatus using the fluid |
| JPH09111231A (en) * | 1995-10-13 | 1997-04-28 | Matsushita Electric Ind Co Ltd | Mixed working fluid containing trifluoroiodomethane and refrigeration cycle apparatus using the fluid |
| WO1997015637A1 (en) * | 1995-10-20 | 1997-05-01 | Tsinghua University | Refrigerant |
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| Title |
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| DATABASE WPIL, Week 9727, DERWENT PUBLICATIONS LTD., AN 97-295223; & JP 9111230 A (MATSUSHITA DENKI SANGYO KK) 28-04-97. * |
| DATABASE WPIL, Week 9727, DERWENT PUBLICATIONS LTD., AN 97-295224; & JP 9111231 A (MATSUSHITA DENKI SANGYO KK) 28-04-97. * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0997519A1 (en) * | 1998-09-29 | 2000-05-03 | Nippon Mitsubishi Oil Corporation | Refrigerating machine oil |
| WO2020116189A1 (en) * | 2018-12-05 | 2020-06-11 | ダイキン工業株式会社 | Heat transfer composition |
| JP2020090598A (en) * | 2018-12-05 | 2020-06-11 | ダイキン工業株式会社 | Heat transfer composition |
| US12173220B2 (en) | 2018-12-05 | 2024-12-24 | Daikin Industries, Ltd. | Heat transfer composition |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100255477B1 (en) | 2000-05-01 |
| KR19980019266A (en) | 1998-06-05 |
| AU7939398A (en) | 1999-08-30 |
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